Hot-roll bottom-burnishing machine



Oct. 8, 1929. R. B. wooQcocK l 1,730,401

HOT ROLL BOTTOM BURNISHING MACHINE Filed 0G11. 23, 1928 2 Sheets-Sheet' 1 Oct. 8, 1929. R. B. wooDcocK 1,730,401

HOT ROLL BOTTOM BURNISHING MACHINE Filed oct. 2s, 1928 2 sheets-sheet 2 of the periphery of the roll and acting to melt Patented Get. 8, 1929 narran stares REG-'IITALD B. OODCOCK, OF LEICESTER, ENGLAND, ASSGNOR T0 NITE SHO MA*- CHINERY CORPOBATON, OF l:PAT.'ERSON, NEW JERSEY, A CORPORATION OFfNEW JERSEY rior-ROLL BoTroiu-Btiitivrsiiine MACHINE Y Application lecl October 23', 1928, Serial No. 314,485, and in Great Britain November 15,1927.

This invention relates to machines for finishing leather and particularly the leather bottoms of boots and shoes. As herein shown, it is embodied in a machine for wax finishing suc-h leather and includes a wax-applying roll and a series of driven burnishing rolls.

It has been found that in machines of this character the most convenient arrangement for the operator, enabling him to handle the work most expeditiously, is that in which the burnishing rolls are arranged sideby side at substantially they same height and with their working faces approximately in alignment. Such a machine is shown in copending ap-v plication Serial No. 219,954, tiled September 16, 1927. In one aspect the present invention consists ina further development or carryingforward of machines of that type in respects which render them more flexible in the adjustment of their component parts and more con-4 venient in maintenance.

1n another aspect the invention consists in improvementsl in finishing machines which are of generalv application. The waxes commonly used for burnishing purposes maybe most conveniently applied to the worlr by means of rolls having absorbent surfaces upon which the wax must be rendered molten and for this purpose felt rolls with textile-covered surfaces are preferred. `As felt is a 'poor conduct-or of heat, it is desirable to provide va,

heating medium coeirtensive with a portion the wax on the surfacetliereof vby radiation. In accordance with an important feature of the invention, it is proposed to support thev driven wax-applying roll in position adjacent to the heating member byysupporting means which are movable to carry the roll bodily toward or from the heating member and without disorganizing theL driving connections to the roll. With such a construction .the roll may be moved away from the heating member whenever it is desired to get unhampered access to the" roll to replace the cover thereof. The proper adjusted relation between Ythe roll and the heating member may also be easily established and maintained. As herein shown, a formingroll is employedv for shaping the surfaceof the wax-applying roll and this is preferably mounted in the kheating member so that the capacity for vmovement above referred to'permits lalso of adjusting the wax-applying roll properly with to the forming roll.

Another yfeature of` the invention consists in a series of aligned wax-finishing rolls'v arranged to be driven as separate units in which an intermediate unit is. mounted so that it may be displaced bodily out of line with the remaining units. lt will be understood that Where the various rollsare arranged side by respect side and with limited space between tliemit j is inconvenient for the operator to remove and replace the cover of an intermediate burnish'l ing roll on account ofthe close proximity of the adjacent rolls or their drivingconnections.

This invention, accordingly, contemplates; a l

mounting for suoli a rollpermitting it to be displaced substantially out of `line withthe adjacent rollsl so that its end surfaces are eX;- posed and may be conveniently reached. As

herein shown the intermediate roll is carried?` a.y pivotally mounted `bracket releasably maintained in operative position and provided with means for locking or releasingthe bracket and with means for counter-balanc-` ing it when it has been unlocked and released.

Still another feature of theinvention relates to a novel mounting for a shank pad affording a capacity for adjustment to suit the preference ofthe individual operator.

ing the shank pad on a slide movable obliquely from front to rear and also bodily movablein y a vertical direction. The shank pad is preferacA the mechanism above described serves to per- As i herein shown this is provided forby mount! mit adjustment of the pad toward and from' the line of the burnishing rolls without dis# turbing their driving connections. j i t These and other features of the invention will be best understood and appreciated from the following description of apreferred'embodiment thereof,l selectedl for purposes of drawings, in which l Fig.. l is a view infront elevation, certain illustration and'shown inthe accompanying j v the same.

' sprocket chain.

Vand forming roll.

parts being broken away, of a machine in which the invention is embodied,

Fig.2 is an end elevation, certain parts being broken away,

Fig. 3 is a plan view, partly in section; and

Fig. 4 is ay view in side Aeleva-tion of one of the intermediate burnishing rolls.

The machine illustrated in the drawings comprises a frame which includes a horizontally disposed bed 9 and legs for supporting At the right-hand end of the bed, as seen in Figs. 1 and 2, is provided a stand or bracket 8 for the wax-applying roll 1. The roll is of a yieldinrv character, having a textile cover, and is herein shown as concaved in contour. It isjournaled to run upon-a shaft 4 and carries a sprocket wheel 5 by which it may be driven from any convenient source of power through the medium of a The shaft 4 is provided with ran oliset oreccentric portion 6 which is received in a bore formed in the bracket 8 and ymay be locked in any position of adjustment by. a clamping screw 7 threaded into the upper portion of the bracket and bearing upon the eccentric'portion 6 of the shaft.

The roll 1 is adapted to carry melted wax vupon its surface and apply it to the work in the manner well known. In orderv tol maintain thewaX in molten condition, a curved heating member comprising a casing 2 is varranged toextend about the rear portion of the periphery of the roll 1 and in close prox.- imity thereto. The casing 2 may be heated byany convenient means such as steam, hot oil orv` electricity. At its upper end the heating member is provided with bearings for an iidle forming roll 3 having a convex curvature which is the reverse of the curvature desiredin the face of the wax-applying roll. The heated casing 2 .is adjustably mounted upon a slide 10 by a pair of bolts extending f through curved slots in a flange on the casing so that the casing and the forming roll may be adjusted angularly in respect vto the wax-applying roll 1. The slide 10 is mounted in a guideway formed vin the bracket 8 and isadapted to be locked in any position of adjustment from front to rear by a hand screw 11. f

It will be understood that by loosening the clamping scr'ew 7 the shaft 4 with the roll 1 is renderedfree to move about the axis of the eccentric portion 6 of the shaft. In this way it may be swung forwardly from the heated casing 2 and out of engagement with the forming roll 3 whenever it is desired to change the renewable lcover of the roll, an operation which could not otherwise be carried out on account of the close proximity of the heater Moreover, since the driven sprocket wheel 5 is carried with the roll 1 the ldriving connection tothe roll is not disturbed.

To the left of the wax-applying roll 1 is power.

located a bottom burnishing or polishing roll 12. This roll is also of a yielding character and provided with a textile cover althouffh it is not usually heated. The burnishing roll k12 is mounted upon the right-hand end of a shaft 14 which carries also a driving pulley end nearest the bottom burnishing roll 12'.

The shaft 14 is j ournaled in ball bearings 15 which are mounted in the free end of a bracket 17 pivotally mounted or hinged to the bed `9` upon a transverse pin 18.

The bracket, therefore, may be swung about the airis of the pin 18 forwardly and downwardly, carrying the shaft 14 with the rolls and pulley mountedthereon and in no way interfering with the driving connection beyond. slackeningV of .the belt which `drives the pulley 16.

The-bracket 17 is maintainednormally in its operative position by a releasable .connection with the rear side of the bed9, which includes a rocker lever 23 pivoted upona pin 24 to the bed 9 and having a socket to receive a threadedlocking bolt 19. The lock bolt 19 has a hand wheel 2O at its upper end and an intermediate collar 21 which is arranged to engagea pair of lugs 22 projecting from the rear side of the bracket 17. l/Vhen the lock bolt 19 is screwed into its socket so that the collar 21 bears upon the lugs 22 the bracket 17 is held rigidly with the shaft 14 in operative position. When it is desired te release the bracket 17 to permit 'its forward movement the lock bolt 19 is loosened and thereupon it is swung toward the rear and out of secured to the lower end of the rocker lever 2.3.

Movement of the rocker lever under the actuation of the spring 25 is limited by a stop face 26 on the lever which is arranged to Contact with a corresponding face 27 on the frame 9. The spring 25 being secured also to the bracket 17 acts to counter-balance the weight of the rolls when the bracket is swung'forwardly and downwardly. The forward y swinging movement of the bracket 17 is limited by a pair oflugs 28 on the bed 9 with which it comes in contact. Y To the left of the shank burnishing` roll 13 is located a bracket 31 (Fig. k1) having bear'- ings for a shaft 30 which carries a rotary brush 29 its outer end.` and a driving pulley 32 at its inner end. The pulley 32 is y driven independently ofthe other finishing rolls by abelty from anyconvenient source of y The axis of the brush shaft 30 is located substantially in the same horizontal plane as. that of the burnishingroll shaft 14 when the latter is in its operative position but somewhat to the rear thereof, so that the working face of the brush 29 is in approximately the same Vertical plane asthe work like face of the .burnishing rolls and the waxapplying roll. 4 1

The bracket 31 is provided with a vertical bore to receive the stem 51 of a vertically adjustable holder 39 which is formed at its upper end with a slideway 40, as-shown in Figs. 2 and' 3, inclined upwardly and forwardly. The body of the bracket 31 is split at its rear side and a clamping bolt 52 provided for clamping the holder 39 inany position of vertical adjustment. ln the slideway is located an elongated slide 36 longitudinally slotted and adjustably secured in place by a-clainping bolt 33'which passes through it and is threaded into fthe upper portion of the holder 39. At the forward end of the slide 36 is adj ustably secured a bearing meinber 35 by means of a clamping b olt 37. .The bearing member is provided with bearings for a pad shaft 3e having a tight pulley and a loose pulley 41 mounted on its upper end and carrying at its lower end a flexible rotary pad 33 for burnishing the shank of the sole close to the breast and also the breast face of the heel. The pad herein shown is similar in construction to that disclosed in pending applicat-ion Serial No. 102,688., filed April 17, 1926, by Ricks and Towndrow. The holder 39 and slide 36 are so proportioned and designed as to position the shank pad 33 about midway between the shank burnisliing roll 13 and the brush 29, somewhat above and slightly in advance of these rolls and with the axis of its shaft inclined at an angle of about to the horizontal. AThe pad shaft 34 is driven by a belt 13 led over idlers journaled at the lower end of the slide 36 to an convenient source of power. i

It will be apparent that the bearing member 35 may be angularly adjusted on the en d of the slide 36' and maintained in any position of angular adjustment by the clamping bolt 37. The pad may be adjusted forwardly and rearwardly at an inclination by loosening the clamping bolt 33 and shiftingthe position of the slide 36 upon the holder 39. Finally, the pad'with the slide 36 may be adjusted vertically by loosening the clamping bolt 52 and changing the position of 'the stein 51 in the bracket 31. The pad, therefore, may be located in whatever position preferred by the operator and in the most convenient relation for him with respect to the shank burnishing roll 13, the work of which the shank pad supplements.

It will be apparent that the foregoing invention provides a machine for carrying out the complete operation of wax-finishing a shoe bottom and that the instrumentalities employed are located advantageously in proximity so that the operator may carry the work rapidly from one roll to another. It will `be apparent that the various rolls of the series are located side by side in approximate alignment and so close together that the operation of renewing a cover of the burnishing roll 12 v or the shank roll 13 would be inconvenient on account of the close proximity of the bracket 8 on the one side and the driving pulley 32 on the other. This difficulty is avoided and the maintenance of the machine facilitated by mounting the intermediate unit of the three driven units for' displacement, as above explained, to an inoperative position substantially out of line with theA other rolls of th-e series and their driving connections. The novel mounting ofthe wax-applying rolll 1, whereby the movement of displacement is made possible, is useful in facilitating the renewal of the roll cover and also in establishing the proper relativeadj ustinent of the wax-applying roll and its associated heat-` ing member and forming roll.

Many modifications and changes in detail will readily occur to those skilled in the art without departing from the spirit and scope of my invention, but having set forth the objects and nature of the invention, and having shown and described a construction embodying the features thereof, whatl claim as new and desire to secure by Letters Patent is: u 1. `In a finishing machine,

v and in con'tact with said forming roll movable to permit said drivenroll to'be separated from said heatedmember and said forming roll. Y l

3. In a finishing machine, a heated member, a forming roll rotatably mounted there-y on, a driven wax-applying roll, and a shaft located in position to maintain said wax-applying roll in operative relation to said heatthe roll bodily to an inoperative position. i

4;. 1n a finishing machine, a drivenjwaxapplying roll, a heated segmental casing Ashaped to correspond substantially tov said roll, being circumferentially adj ustableerelative thereto and carrying a forming roll, and

means for independently supporting and driving said wax-applying roll.

5. 1n a finishing machine, a plurality of wax-finishing rolls arranged in approximately axial alignment and driven as three separate units, the intermediate unit being mounted so that it may be displaced bodily outof line with the rremaining units.

,6, ln a finishing machine, a plurality of wax-linishing rolls arranged in approximately axial alignment, driven as three separate a heated casing, va driven wax-applying roll, and means for ico."

llO

ed member and roll, said shaft having an ecn centric support whereby it may be displaced to carry units and having each a driving connection, and means for releasably maintaining the intermediate unitv in position arranged to .permit it to be displaced transversely with its driving connection from the line of the rolls. 7. In a finishing machine, a series of driven finishing rolls arranged. with their operative faces in substantial alignment, a bracket for one of the intermediate rolls of said series pivot-ally mounted to move transversely to the line of the rolls, and means for releaseably maintaining said bracket in position.

8. In a finishing machine, a series of driven finishing rolls mounted side by side, a hinged bracket in which one of the intermediate rolls is mounted, means for locking said bracket in position and a spring operative to counterbalance said bracket when it has been unlocked.

9. In a finishing machine, a series of driven finishing rolls mounted side by side, a hinged bracket for one roll having a locking projection, a pivoted arm having a (3o-operating locking member, and a spring connected to said arm for moving the arm to unlocking position and counter-balancing the bracket.

10. In a finishing machine, a frame, a bracket pivotally mounted thereon and carrying at its free end a driven shaft, a burnishing roll mounted on said shaft and having a renewable textile cover, and releasable means for maintaining said bracket in operative position arranged to be disengaged to permit the bracket to be tilted to present the' roll in an inoperative position Where its cover may be replaced.

ll. In a finishing machine having a series of driven finishing rolls, a shank pad with driving connections located above and in front of the other pads of the series, and a mounting therefor constructed and .arranged to permit adjustment of the shank pad bodily forwardly and rearwardly in an inclined path, and bodily in a vertical direction.

12. In a finishing machine, a frame, a bracket vertically adjustable upon the frame, an obliquely'inclined slideway carried by the bracket, a slide adjustably retained in said slideway andv having bearings therein, and an inclined shank pad shaft mountedin said Vbearings and carrying a iieXible shank pad.

13. In a finishing machine, a bed, a driven waX-applying roll mounted at one side of the bed, a driven brush mounted at the other vside of the bed, and a bracket arranged to maintain a driven polishing roll in operative position substantially between the waxapplying roll and brush and being so mounted as to permit bodily movement of said driven polishing roll transversely to aninoperative position. Y

V14. In a finishing machine, driven finishing *rolls mounted in spaced relation, and an intermediate forked bracket having a shaft vvitha driving pulley located between the arms thereof and a burnishing roll on either end of the shaft, said bracket being arranged to move to carry said shaft with its pulley and rolls as ar unit to an inoperative position remote from said spaced nishing rolls.

15. In a finishing machine,r a frame, driven finishing rolls `located side by side in close proximity upon the bed and having separate ldriving connections, and brackets for sup porting said rolls, one of said brackets being movably mounted upon the frame whereby it may be moved to present its finishing roll in an inoperativey positionout of line with the adjacent roll. Y

In testimony whereof I have signed my name to this specification.

REGINALD BOYD WOODCOCK. 

